DIRECT VARIATION

PASS OUT FLAT FOLDABLE

We will be looking to see if there is a direct relationship in different sets of data. If the constant of proportionality (now called constant of variation) is the same for all data given, the data is related through a direct variation.

The graph of a direct variation always passes through the origin; therefore, represents a proportional relationship.

DIRECT VARIATION CAN BE WRITTEN

y = kx

CONSTANT OF PROPORTIONALITY CONSTANT OF VARIATION SAME THING Can be written

= k

WATCH THIS VIDEO ON DIRECT VARIATION https://my.hrw.com/content/hmof/math/common/tools/videoplayer/index.html?contentSrc=13192/13192.xml

DETERMINE WHETHER THE DATA SET SHOWS DIRECT VARIATION. IF SO, WRITE AN EQUATION THAT DESCRIBES THE RELATIONSHIP. USE = k

DETERMINE WHETHER THE DATA SET SHOWS DIRECT VARIATION. IF SO, WRITE AN EQUATION THAT DESCRIBES THE RELATIONSHIP. USE = k

DETERMINE WHETHER THE DATA SET SHOWS DIRECT VARIATION. IF SO, WRITE AN EQUATION THAT DESCRIBES THE RELATIONSHIP. USE = k YOU TRY THIS ONE

DETERMINE WHETHER THE DATA SET SHOW DIRECT VARIATION. IF SO, WRITE AN EQUATION THAT DESCRIBES THE RELATIONSHIP. USE = k YOU TRY THIS ONE

1—Make table labeled x y

2—Find the constant of variation

3—Write a direct variation equation

4—Use equation to find how many pounds in 152 ounces.

1—Make table labeled x y

2—Find the constant of variation

3—Write a direct variation equation

4—Use equation to find how many pounds in 152 ounces.